6.34% is the change from 584 to 621
Calculation steps:
[( 621 - 584 ) ÷ 584] x 100 = 6.34%
Formula
Percentage change = [(621 - 584) / 584] x 100
Subtract the new number by the original number
621 - 584 = 37
37 ÷ 584 = 0.06335616438356165
0.06335616438356165 x 100 = 6.34%